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Cisco Meraki

Meraki Authentication Server Certificate Rotation - Feb 2023

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Overview

As part of a standard yearly certificate rotation to maintain Meraki Authentication security, Meraki will be rotating the RADIUS server certificate used for Meraki Authentication before its expiration 8 February 2023. The following is the expected impact and remediation steps. 

Screen Shot 2022-12-09 at 12.24.43 PM.png

Note: After the rotation date, Meraki Cloud Authentication with certificate based authentication will start to use a new certificate. 

Meraki Authentication with Sentry Wi-Fi

Users of Meraki Authentication with Systems Manager Sentry Wi-Fi with devices which were online between the rotation date of 5 December 2022 and the expiration date of 8 February 2023 will have no user-visible impact. 

Users with devices which were not online during that period simply need to associate to an SSID which will allow them to check in with dashboard for long enough to allow a check-in cycle to complete (~2 minutes) in order to receive the updated payload and resume normal operation

Meraki Authentication without Sentry Wi-Fi

Users of Meraki Authentication via certificate based authentication without Sentry Wi-Fi will need to 'trust' the new certificate with the below information upon associating to the Meraki Authentication SSID before 8 February 2023. Some devices may require the SSID to be "forgotten" before they will prompt to accept the new certificate.  

Host: radius.meraki.com
Issued: DigiCert TLS RSA SHA256 2020 CA1
Expires: Nov 30 23:59:59 2023 GMT

Note: See the Meraki Authentication Radius Certificate below for the new certificate. 

Trusted Access

Users of a Trusted Access configuration to an SSID will need to re-download their device's Trusted Access configuration from portal.meraki.com on or after the 8 February 2023 rotation date. 

Certificate Details

Below is a copy of the certificate which users will be required to accept, as well as the plaintext output from reading the certificate with openssl:

meraki$ openssl x509 -noout -text -in ./new.meraki-auth-radius.cert
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            0e:2d:f7:84:e3:69:bb:fe:b8:ce:3b:1c:51:96:4f:ff
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C = US, O = DigiCert Inc, CN = DigiCert TLS RSA SHA256 2020 CA1
        Validity
            Not Before: Dec  1 00:00:00 2022 GMT
            Not After : Nov 30 23:59:59 2023 GMT
        Subject: C = US, ST = California, L = San Francisco, O = Meraki LLC, CN = radius.meraki.com
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                RSA Public-Key: (4096 bit)
                Modulus:
                    00:93:98:86:06:a9:c7:7f:7d:e8:e1:bf:97:6d:69:
                    30:37:b3:b4:33:f7:08:79:b7:33:0b:d5:df:c9:a9:
                    95:ca:e0:9a:0b:a1:1b:bb:22:d8:ca:ec:29:aa:bc:
                    73:76:f9:e3:b8:a6:62:c3:29:c4:fc:ee:e7:3b:7e:
                    c9:e6:3d:5d:43:75:31:38:7f:f4:54:15:39:63:fd:
                    b2:1e:e4:63:52:8d:7e:2a:4b:66:8b:6c:c3:29:97:
                    97:ba:95:fb:27:ee:05:8d:5e:47:b9:cf:12:5c:c5:
                    df:b6:47:5b:0f:90:f0:f0:4d:09:ca:85:8c:55:f4:
                    93:ed:54:ad:cb:0c:36:e6:b3:cc:a2:d4:46:02:d5:
                    c9:d7:de:a7:75:43:1f:f9:cb:a2:10:15:da:16:0a:
                    e1:eb:b9:87:f5:24:4b:d3:b8:c0:8c:2a:2e:65:23:
                    3f:21:3a:40:e3:3c:0c:f1:4e:7f:18:c4:ae:1d:b3:
                    79:cd:62:ed:54:7d:b3:90:f5:c4:8b:13:cd:2b:0e:
                    6c:d4:3a:94:aa:32:67:99:23:6c:59:9c:72:7e:d7:
                    34:06:d3:bb:df:1d:b4:23:c9:cf:e3:4a:d2:30:1f:
                    19:24:30:9c:ad:5f:b3:93:8c:ce:4c:8b:cf:b0:ca:
                    22:1b:06:0c:41:71:9b:0c:bc:f0:11:34:22:04:e7:
                    9e:85:32:c8:7a:3a:a8:17:bc:a8:32:96:e0:13:0a:
                    11:a0:da:28:b4:10:ed:6b:e5:e3:56:ed:8e:42:f8:
                    61:be:65:45:81:1d:10:b3:a7:0e:8e:18:06:19:cc:
                    a1:57:aa:3d:aa:54:0b:4e:e2:2b:78:5b:2c:b7:b3:
                    33:94:71:11:2d:8e:9f:75:57:f1:fd:cf:43:46:e3:
                    3c:55:e8:a3:d3:c7:5a:9b:ce:26:a2:f9:c2:dc:10:
                    23:80:f5:79:90:7a:4e:2c:09:5c:f3:7e:de:3e:9b:
                    c1:90:2b:89:0a:dc:4d:70:f5:c8:e7:96:ab:87:ef:
                    78:be:2e:a8:9d:8a:4d:95:56:d6:52:5f:7c:54:8a:
                    74:91:32:de:e1:cc:7f:e9:d9:58:2b:75:a0:c0:19:
                    68:db:82:3f:8b:44:c5:11:8c:a8:d8:a0:87:3b:fa:
                    27:3a:1f:bb:94:ba:11:94:56:b3:75:7d:23:2a:3f:
                    ec:45:49:f4:bc:34:62:fa:d2:fe:aa:66:8a:8e:13:
                    c6:63:57:69:89:f5:f6:cb:c4:0d:2a:6b:9c:d5:f3:
                    4e:cd:b3:fa:79:b2:b5:32:17:f4:f3:bc:47:dd:4f:
                    ab:ff:1c:a2:a4:bd:c9:61:17:71:19:3a:60:23:54:
                    85:fc:34:c3:59:c2:fd:b8:91:65:58:7c:df:18:ac:
                    f3:b1:45
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Authority Key Identifier:
                keyid:B7:6B:A2:EA:A8:AA:84:8C:79:EA:B4:DA:0F:98:B2:C5:95:76:B9:F4

            X509v3 Subject Key Identifier:
                47:5D:46:67:F6:A5:B0:02:EE:8A:2C:8B:4B:B1:85:8E:71:90:26:CF
            X509v3 Subject Alternative Name:
                DNS:radius.meraki.com
            X509v3 Key Usage: critical
                Digital Signature, Key Encipherment
            X509v3 Extended Key Usage:
                TLS Web Server Authentication, TLS Web Client Authentication
            X509v3 CRL Distribution Points:

                Full Name:
                  URI:http://crl3.digicert.com/DigiCertTLSRSASHA2562020CA1-4.crl

                Full Name:
                  URI:http://crl4.digicert.com/DigiCertTLSRSASHA2562020CA1-4.crl

            X509v3 Certificate Policies:
                Policy: 2.23.140.1.2.2
                  CPS: http://www.digicert.com/CPS

            Authority Information Access:
                OCSP - URI:http://ocsp.digicert.com
                CA Issuers - URI:http://cacerts.digicert.com/DigiCertTLSRSASHA2562020CA1-1.crt

            X509v3 Basic Constraints:
                CA:FALSE
            CT Precertificate SCTs:
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
                                03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
                    Timestamp : Dec  1 23:40:10.163 2022 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:21:00:80:FD:FA:45:1E:EB:07:A8:8B:B5:E2:
                                62:6F:F1:92:BA:6E:B4:29:55:B6:41:00:6F:7E:98:56:
                                56:C3:75:C6:67:02:20:3A:AB:85:D5:86:0C:97:D6:85:
                                5D:C0:9F:92:17:3F:F3:E4:DC:BB:F9:F9:B2:9E:D5:99:
                                46:2A:1E:55:16:73:55
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : B3:73:77:07:E1:84:50:F8:63:86:D6:05:A9:DC:11:09:
                                4A:79:2D:B1:67:0C:0B:87:DC:F0:03:0E:79:36:A5:9A
                    Timestamp : Dec  1 23:40:10.269 2022 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:45:02:20:4F:B2:AE:16:44:20:B4:A8:4C:4D:3A:5E:
                                1D:33:52:A0:B0:65:86:10:40:03:A5:3B:E9:84:21:F9:
                                4A:F7:4D:DB:02:21:00:FE:55:92:C5:A0:9D:78:97:94:
                                B7:36:2D:25:FB:99:E6:47:5D:11:B7:91:FF:04:E9:72:
                                AB:BC:7B:A4:FD:F2:79
                Signed Certificate Timestamp:
                    Version   : v1 (0x0)
                    Log ID    : B7:3E:FB:24:DF:9C:4D:BA:75:F2:39:C5:BA:58:F4:6C:
                                5D:FC:42:CF:7A:9F:35:C4:9E:1D:09:81:25:ED:B4:99
                    Timestamp : Dec  1 23:40:10.221 2022 GMT
                    Extensions: none
                    Signature : ecdsa-with-SHA256
                                30:44:02:20:6A:2E:35:77:CD:58:57:E4:BE:E1:04:70:
                                80:82:84:BE:BA:79:07:DB:4B:EA:A3:30:18:C1:EE:29:
                                C0:E1:FA:B1:02:20:32:45:E3:FA:A0:A5:03:2E:09:DE:
                                AE:1B:13:0D:4D:1F:A2:45:1E:4F:F7:B4:7D:AA:52:B6:
                                F2:86:23:CD:32:9D
    Signature Algorithm: sha256WithRSAEncryption
         6e:60:1b:81:9e:b8:84:4d:75:77:69:df:7d:6d:90:ea:69:ad:
         64:74:d3:8b:4f:3b:8c:38:b7:35:3d:22:26:c5:16:ae:5f:93:
         88:b3:48:99:f7:cf:d1:68:d8:15:17:6f:bf:57:f8:9a:df:4b:
         74:96:51:63:ff:18:1a:f2:b4:08:09:a6:83:73:b4:2d:7c:c6:
         10:cd:59:e5:a4:7c:b7:6e:62:c4:f3:51:7f:90:f5:c3:15:5b:
         6c:85:19:04:d9:9e:2d:ba:a0:8b:98:28:a4:df:f7:55:7f:ed:
         5c:ad:90:d7:9b:84:b2:ce:38:6a:b1:df:83:dd:38:ef:0a:e6:
         7f:c2:27:4f:7d:a5:d1:c3:49:d6:ef:a0:61:e2:c9:76:21:f9:
         7c:0a:91:24:6e:ea:6b:6d:fb:d2:06:8c:40:78:a5:79:18:0c:
         fd:63:01:57:37:b1:ca:9c:3d:7a:64:61:a9:2d:4f:c9:5e:a1:
         ef:b6:70:73:f2:52:71:5c:9d:4d:aa:7e:ed:63:40:c2:7d:12:
         38:f9:53:20:68:6b:b7:ed:95:91:ca:1e:88:85:e5:44:71:21:
         08:75:a2:f5:7d:40:c6:49:b6:61:a8:c7:d9:6e:7a:46:a8:f1:
         82:be:29:7c:1d:50:65:f9:f3:a3:8d:a5:cc:c4:1f:f2:cf:64:
         2c:60:b7:e1
#Meraki Authentication Radius Certificate
-----BEGIN CERTIFICATE-----
MIIHtjCCBp6gAwIBAgIQDi33hONpu/64zjscUZZP/zANBgkqhkiG9w0BAQsFADBP
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMSkwJwYDVQQDEyBE
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ggIPADCCAgoCggIBAJOYhgapx3996OG/l21pMDeztDP3CHm3MwvV38mplcrgmguh
G7si2MrsKaq8c3b547imYsMpxPzu5zt+yeY9XUN1MTh/9FQVOWP9sh7kY1KNfipL
ZotswymXl7qV+yfuBY1eR7nPElzF37ZHWw+Q8PBNCcqFjFX0k+1UrcsMNuazzKLU
RgLVydfep3VDH/nLohAV2hYK4eu5h/UkS9O4wIwqLmUjPyE6QOM8DPFOfxjErh2z
ec1i7VR9s5D1xIsTzSsObNQ6lKoyZ5kjbFmccn7XNAbTu98dtCPJz+NK0jAfGSQw
nK1fs5OMzkyLz7DKIhsGDEFxmwy88BE0IgTnnoUyyHo6qBe8qDKW4BMKEaDaKLQQ
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q4fveL4uqJ2KTZVW1lJffFSKdJEy3uHMf+nZWCt1oMAZaNuCP4tExRGMqNighzv6
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dC5jb20vRGlnaUNlcnRUTFNSU0FTSEEyNTYyMDIwQ0ExLTQuY3JsMECgPqA8hjpo
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OPlTIGhrt+2VkcoeiIXlRHEhCHWi9X1Axkm2YajH2W56Rqjxgr4pfB1QZfnzo42l
zMQf8s9kLGC34Q==
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIEvjCCA6agAwIBAgIQBtjZBNVYQ0b2ii+nVCJ+xDANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
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A7sKPPcw7+uvTPyLNhBzPvOk
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIDrzCCApegAwIBAgIQCDvgVpBCRrGhdWrJWZHHSjANBgkqhkiG9w0BAQUFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
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T19sdl6gSzeRntwi5m3OFBqOasv+zbMUZBfHWymeMr/y7vrTC0LUq7dBMtoM1O/4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-----END CERTIFICATE-----

FAQs  

Q: What is changing?
A: Due to an approaching certificate expiration, Meraki will be rotating the RADIUS certificate for Meraki Cloud Authentication on February 8, 2023. This rotation is a standard yearly action taken to maintain Meraki Authentication security.

In some Systems Manager (SM) deployments, devices will automatically receive the new certificate and no further action will likely be required. However, there are certain deployment scenarios that may require action to be taken.

Q: How can an affected network be identified?
A: Any services relying on Meraki Cloud Authentication via certificates will be affected. This includes Sentry Wi-Fi, Trusted Access Wi-Fi, and any manual authentication relying on Meraki Cloud Authentication via certificates. 

Q: Which network deployment scenarios require action to be taken?
A: Only SSIDs with Meraki Cloud Authentication using the RADIUS certificate for authentication will be affected. 

If you are using this certificate for Meraki Cloud Authentication and have a network with any of the following deployment scenarios, your action may be required to manually accept the new certificate:

  • If you have non-Systems Manager (SM) deployment networks
  • If you utilize Meraki Authentication with Sentry Wi-Fi, but had devices offline between December 5, 2022 and February 8, 2023
  • If you utilize a Trusted Access configuration to an SSID

Please refer to our documentation (above) for further network identification details and next steps.

Q: Is there an action needed to maintain connectivity?
A: Please refer to our documentation (above) to understand the expected impact and next steps for the different deployment scenarios.

If your network is affected, you may need to accept the new certificate for your devices to maintain connectivity before February 8, 2023.

Q: What happens if no action is taken by February 8, 2023?
A: If devices are still using the outdated RADIUS certificate after February 8, 2023, they may not be able to connect back to the Meraki Cloud Authentication SSID until the new certificate is accepted. Please see our documentation (above) for more details and next steps.

Q: How often is this certificate rotated?
A: This is part of a standard yearly certificate rotation to maintain Meraki Authentication security. 

Q: Will this affect username or password authentication with Meraki Authentication?
A: This will only affect certificate-based authentication. If you are using Meraki Cloud Authentication with username/ password authentication that does not rely on this certificate (such as PEAP), your username and password will not be affected. 

If you are using certificate-based authentication (such as EAP-TLS) where this RADIUS Meraki Cloud Authentication certificate is used, you will need to accept the new certificate before February 8, 2023.

Q: Where can I go if I need additional assistance?
A: If you have additional questions or need assistance, please contact Meraki Technical Support. 

There are three ways you can contact Meraki Technical Support:
Open a case via Meraki dashboard, 
Email support@meraki.com
Call your localized support line, which can be found at the bottom of the Meraki Technical Support webpage